<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    
    <style>
        body{
            /* width: 100%; */
            display: flex;
            justify-content:center
        }
        #bigger{
            margin-top: 100px;
            width: 300px;
            height: 30px;
            background-color: "red";
            display: flex;
            flex-wrap: wrap;
        }
        li{
            cursor: pointer;
        }
    </style>
</head>
<body>
    <div  id="bigger">
    <input style="width: 70%;" type="text" name="" id="input">
    <button style="width: 20%;" id="login">登录</button>
    <video autoplay id="video1" style="width: 100%;height: 200px;background-color: skyblue;" ></video>
    <video autoplay id="video2" style="width: 100%;height: 200px;background-color: pink;" ></video>
    <ul></ul>
    </div>
    <script src="./index.js"></script>
</body>
</html>